Portable photographic developing device.



J. C. OLIVER.

PORTABLE PHOTOGRAPHIG DEVELOPING DEVICE.

APPLICATION FILED N0v.6,1912.

1,080,995. Patented Dec. 9, 1913.

IX. mm

WTNESSES INVENTOR BY gum Zo. @f/w HIS ATTORNEY JOSEPH C.

OLIVER, or sAN JosE,

CALIFORNIA.

PORTABLE PHOTOGRAPHIC DEVELOPING DEVICE.

To all whom t may concern.'

Be it known that I, JOSEPH C. OLIVER, a citizen of the United States, residing at San Jose, in the county of Santa Clara and State of California, have invented certain new and useful Improvements in Portable Photographic Developing Devices; and I do hereby declare the following to be a full, clear, and exact description of my invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to new and useful improvements in portable photographic developing devices, and more especially to the means fo-r developing negative plates and ilms without the person being inclosed in a dark room to do so.

One object of my invention is to provide means for developing negative plates and films in any place, and in any light, without the use of a dark room.

Another obj ect of my invention is to provide a portable developing device which can be carried by hand, whereby plates and films may be developed soon after exposure without recourse to a dark room.

Tith these and other objects in view, my invention consists primarily of a portable cabinet case in which are inclosed trays, chemicals, and other necessary matter for developing plates and films.

In the accompanying drawings, which illustrate a preferred embodiment of my device, Figure 1 is a perspective view of my portable photographic developing device in use; Fig. 2 is a vertical section through the glazed end of the same on line A-A of Fig. 1; Fig. 3 is a fragmentary vertical section on line B-B of Fig. 1; Fig. 4 is a fragmentary end elevation at C of Fig. 1; Fig. 5 is a front elevation of the metallic frame opened; Fig. 6 is a perspective view of my portable photographic developing device closed.

Referring more specifically to the drawings in which like reference numerals designate corresponding parts throughout,-1 is the portable cabinet case, which may be made of wood or any other suitable material, and of any size required, having a cover 2 opening upward, and a side shown at 3 opening downward. One end of said cabinet case 1 is provided with a window frame 4; this window frame 4 has two compartments shown at 5,Fig. 2; into one of these compart- Specicaton of Letters Patent.

Application filed November 6, 1912.

Patented Dec. 9, 1913.

Serial No. 729,798.Y

ments is inserted a ruby colored glass, and into the other compartment an orange colored glass, shown at 6; in these compartments 5, near the outer edges thereof, are fastened rubber gaskets 7 these rubber gaskets 7 are for the purpose of excluding any light that might otherwise come in around the edges of said colored glass, and also serve to hold and protect said colored glass when in place in said frame 4. On the inside of said window frame 4, at the bottom thereof, is fastened roller curtain shown at 8, Fig. 2; this curtain is for the purpose of adjusting the light coming through said colored glass 6; this curtain may be made of opaque cloth or any other suitable material, and adjusted up and down as the operator may require. Cover 2 is hinged to the portable cabinet case 1 by hinge shown at 9, Figs. 1 and 3; there may be three or more of these hinges to support said cover 2, as the same may require. Said cover 2 is held open by metal rod 9a, said rod being connected to the inside of cabinet case 1 by staple S, and to the inside of cover 2 by swivel shown at B, Fig. 1. Over the opening between cover 2 and the case 1, is fastened opaque cloth shown at 10, Figs. 1 and 3, for the purpose of excluding any light that might otherwise come in through said opening. Side 3, of case 1, is opened downward and turns on pivots 11, one on each end thereof, as shown at Fig. 4; the lower edge of said side 3 is made rounding so as to cause the same to shut closely to the side of cabinet case 1 when closed. Metal plates 12 are fastened to the ends of case 1, and side 8, and are for the purpose of holding said side 3 and case 1 together by pivots 11. Joint 13 is covered with opaque cloth, the same being fastened to case 1 and side 3, as shown at 14, Fig. 4, and is for the purpose of excluding .any light that might come in through joint 13, when operating. Around on the inside of cover 2, side 3, and ends of cabinet case 1, is fastened in a secure manner opaque cloth 15, for the purpose of excluding all actinic light from the inside of cabinet case 1. On the front side of said cloth 15, is attached a metallic frame 16; the same being pivoted as shown at 17, Fig. 5, for the purpose of opening and closing the same. Around one half of this frame 16 is fastened a rubber gasket 1S, shown in Fig. 5; this rubber gasket 18 is for the purpose of excluding all actinic light from the inside of said cabinet case 1 at this point, when the same is closed and held in place by clasps 19. This metallic frame 16, when open, is for the purpose of permitting the placing in, or removal of articles from, said cabinet case 1 before and after the developing process. At the top of said opaque cloth 15, is fastened a spring wire mask 20; this mask is made to iit around the forehead of the operator, and over the bridge of the nose, the same being padded to protect the forehead and nose, and is held in place by rubber band 21; said rubber band passing around the operator-s head and fastened to each side of said mask 20 by any desirable fastening, shown at 22. Said padded mask 20, held in place by said rubber band 21, is for the purpose of excluding all light from said cabinet case 1 at this point, yet leaving the operator with perfect freedom to breathe the outside atmosphere, and to operate, and observe the operation going on inside. At the lower right and left hand sides of opaque cloth 15, are iiowing sleeves 22, for the purpose of inserting therein the lower part of the arm, bringing the hands inside of case l for operating therein. These flowing sleeves are fastenedaround the arm by rubber elastic 23 to prevent any actinic light entering said case 1 at this point. Operating trays, 24, are shown inside of case l in Fig. l; solution receptacles are shown at 25.

My portable photographic developing device is provided with a lock and hooks,

shown at 2G, Fig. G, for the purpose of fastening the same when closed, and a handle 27, made of leather or any other suitable material, for carrying the same.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In a portable photographic developing cabinet, the combination of a cabinet case having a hinged cover adapted to open upward, a hinged front adapted to open downward, and having a window frame in one end provided with two gasketed compartments to receive colored glass, a rod attached to said case to hold the cover in open position, a curtain adapted to be drawn over said window and carried by a roller 1nounted at the bottom of said window frame, an opaque hood attached to the top, ends, and front of said case, said hood being provided with a light excluding eye-piece having f means of attachment to the head of the operator, with light excluding iiowing sleeves, and with an opening provided with a gasketed closing frame and means for holding said frame closed, as shown and described.

In testimony whereof, l aiiix my signature in presence of two witnesses.

JOSEPH O. OLIVER.

vWitnesses JOHN A.` NAIsMrrI-I, HIRAM Jv. VALLACE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

